规模化养猪过程中臭气的减排措施研究进展

目前,养殖场周边存在着日益严重的养殖臭气污染问题,特别是大型养猪场周边,这给养殖场的畜禽动物、养殖人员和周围居民造成较为严重的健康影响.如何有效解决养殖臭气的处理问题,已成为大型养殖场面临的棘手问题.本文综述了养殖臭气的主要成分、影响因素、减排措施及工程应用案例,以期为规模化养猪场减少臭气排放提供参考.     

Application of the ELECTRE Method in Pricing the Commodity Houses According to Grades in Multi-Objection

This paper discussed applying ELECTRE method to select the Commodityhouses in multi-objection. In order to define the grades of the commodity houses, a quantitative method on pricing the commodity houses according to their grades for Real EstateBusiness Centre or price departments was provided.     

Long‐Term Impacts of Post‐Fire Mulching on Ground‐Dwelling Arthropod Communities in a Eucalypt Plantation

In the past decades, Portugal like several other Mediterranean countries has been affected by frequent wildfires. This has led to various field tests of post‐fire soil conservation measures and, in particular, mulching with forest slash residues. While forest residue mulching was shown to be highly effective in reducing post‐fire erosion, its side effects on soil fauna communities have not been studied and are also difficult to predict from the – scarce – literature on mulch effects in general. Therefore, this study compared the abundance, diversity and taxonomic and functional composition of the ground‐dwelling arthropod communities of three mulched and, as control, three untreated erosion plots of roughly 100 m² that had been installed in a eucalypt plantation almost immediately after a wildfire in 2010, some five years earlier. This was done using three pitfall traps per plot, placed at the lower, middle and upper part of the study slope. Roughly five years after mulching, its impacts on the ground‐dwelling arthropod were rather limited, especially compared to its effect on overall soil erosion rates. One of the few exceptions was the abundance of the Hymenoptera – one of the most frequently occurring orders – which was significantly lower in the mulched than control plots. This and other near significant mulching impacts found in this study plainly justify a follow‐up study on short‐term effects. Copyright © 2016 John Wiley & Sons, Ltd.     

猪舍喷雾降温系统气流喷孔形式对流场影响的实验分析

局部环境射流控制喷雾蒸发降温系统是适用于我国南方夏季炎热地区开放型猪舍的局部送风降温系统。在该降温系统中,控制区域中的风速分布对降温效果影响很大,而影响风速分布的重要因素之一就是射流喷孔形式。在相同的气流出口流量的条件下,使用热球式风速仪分别对圆形、环形及环形旋流气流喷孔射流在控制区域所形成的风速分布进行了测量,在满足猪对风速范围要求的情况下,按照风速分布尽量均匀的原则,对各种形式气流喷孔的性能进行实验分析,实验结果表明对于该降温系统环形旋流喷孔的性能最优,在设计时应优先选用环形旋流气流喷孔。     

商品房中地下建筑防水工程施工质量问题分析与预防

对监理工程中地下室防水工程常见问题进行分析，并提出相应的质量控制及防范措施。     

果色飘香,田园栖居——观赏果树在岭南居住环境中的应用

观赏果树蕴含果色飘香,田园栖居的景观意境,且自古在岭南园林中得到应用。但受西方园林的影响,岭南现代居住环境中却较少使用观赏果树。本文通过分析观赏果树在岭南园林中的作用,探讨观赏果树使用中的问题,提出观赏果树的使用方式等,想引起大家的关注,深入研究和应用岭南园林中的观赏果树景观特色。     

浅析居住建筑的节能设计

本文简要分析了严寒地区居住建筑的防寒保温节能设计中的几个关键问题,并提出了解决问题的做法。     

大理白族社区的保护规划设计探究

对大理白族社区用地现状、历史遗迹、绿地空间、道路空间进行分析,总结出大理古城存在着古城白族传统民居社区结构与现代生活需求之间、古城传统城市格局与现代城市发展之间和古城现有资源利用方式与当今资源环境状况之间的三大矛盾。籍此,采用创新性的理念和方法,在满足现代社会需要的同时,珍视场地价值,探究云南大理古城白族社区的传统民居、绿地空间、道路交通和水再生系统的保护规划模式。     

四川院落民居景观特点及修护——安仁古镇的院落兴建

对四川院落民居的意义、形式及与各地院落民居进行了对比分析,并对四川院落民居及其景观的形成进行了探讨。以安仁古镇的公馆院落的改造为例,对其院落的景观改造进行了分析,总结了四川院落景观特点,取优弃缺,明确对四川院落民居的修护景观设计原则。